MAX9205

· Standalone Serializer (vs. SERDES) Ideal for Unidirectional Links
· Framing Bits for Deserializer Resync Allow Hot Insertion Without System Interruption
· LVDS Serial Output Rated for Point-to-Point and Bus Applications
· Wide Reference Clock Input Range 16MHz to 40MHz (MAX9205) 40MHz to 66MHz (MAX9207)
· Low 140ps (pk-pk) Deterministic Jitter (MAX9207)
· Low 34mA Supply Current (MAX9205)
· 10-Bit Parallel LVCMOS/LVTTL Interface
· Up to 660Mbps Payload Data Rate (MAX9207)
· Programmable Active Edge on Input Latch
· Pin-Compatible Upgrades to DS92LV1021 and DS92LV1023

Cellular Phone Base Stations
Add Drop Muxes
Digital Cross-Connects DSLAMs
Network Switches and Routers
Backplane Interconnect

V_CC to GND..............................................-0.3V to +4.0V
IN_, SYNC1, SYNC2, EN, TCLK_R/F, TCLK,
PWRDN to GND......................................-0.3V to (V_CC + 0.3V)
OUT+, OUT- to GND .........................................-0.3V to +4.0V
Output Short-Circuit Duration................................Continuous
Continuous Power Dissipation (T_A = +70°C)
28-Pin SSOP (derate 9.5mW/°C above +70°C) .......762mW
Storage Temperature Range ....................-65°C to +150°C
Junction Temperature................................................+150°C
Operating Temperature Range ...................-40°C to +85°C
Lead Temperature (soldering, 10s) ..........................+300°C
ESD Protection (Human Body Model, OUT+, OUT-) ........±8kV
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability

The MAX9205/MAX9207 serializers transform 10-bitwide parallel LVCMOS/LVTTL data into a serial highspeed bus low-voltage differential signaling (LVDS) data stream. The serializers typically pair of MAX9205 with deserializers like the MAX9206*/MAX9208*, which receive the serial output and transform it back to 10-bit-wide parallel data.

The MAX9205/MAX9207 transmit serial data at speeds up to 400Mbps and 660Mbps, respectively, over PC board traces or twisted-pair cables. Since the clock is recovered from the serial data stream, clock-to-data and data-to-data skew that would be present with a parallel bus are eliminated.

The serializers MAX9205 require no external components and few control signals. The input data strobe edge is selected by TCLK_R/F. PWRDN to save power when the devices are not in use. Upon power-up, a synchronization mode is activated, which is controlled by two SYNC inputs, SYNC1 and SYNC2.

The MAX9205 can lock to a 16MHz to 40MHz system clock, while the MAX9207 can lock to a 40MHz to 66MHz system clock. The serializer output is held in high impedance until the device is fully locked to the local system clock, or when the device is in powerdown mode.

MAX9205 operate from a single +3.3V supply, are specified for operation from -40°C to +85°C, and are available in 28-pin SSOP packages.